books.google.com - This is a graduate-level text that systematically develops the foundations of the subject. Quantum groups (i.e. Hopf algebras) are treated as mathematical objects in their own right; basic properties and theorems are proven in detail from this standpoint, including the results underlying key applications....https://books.google.com/books/about/Foundations_of_Quantum_Group_Theory.html?id=AmBsEkulnQEC&utm_source=gb-gplus-shareFoundations of Quantum Group Theory